The config property can be used to provide an array of
register addresses and values to be written to configure
the device for the board.
Signed-off-by: Michael Drake <michael.drake@xxxxxxxxxxxxxxx>
Cc: Patrick Glaser <pglaser@xxxxxxxxx>
Cc: Nate Case <ncase@xxxxxxxxx>
---
.../bindings/display/bridge/ti,ds90ub948.txt | 21 +++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt b/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
index f9e86cb22900..1e7033b0f3b7 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
+++ b/Documentation/devicetree/bindings/display/bridge/ti,ds90ub948.txt
@@ -12,6 +12,8 @@ Required properties:
Optional properties:
- regulators: List of regulator name strings to enable for operation of device.
+- config: List of <register address>,<value> pairs to be set to configure
+ device on powerup. The register addresses and values are 8bit.
Example
-------
@@ -21,4 +23,23 @@ ti948: ds90ub948@0 {
regulators: "vcc",
"vcc_disp";
+ config:
+ /* set error count to max */
+ <0x41>, <0x1f>,
+ /* sets output mode, no change noticed */
+ <0x49>, <0xe0>,
+ /* speed up I2C, 0xE is around 480KHz */
+ <0x26>, <0x0e>,
+ /* speed up I2C, 0xE is around 480KHz */
+ <0x27>, <0x0e>,
+ /* sets GPIO0 as an input */
+ <0x1D>, <0x13>,
+ /* set GPIO2 high, backlight PWM (set to 0x50 for normal use) */
+ <0x1E>, <0x50>,
+ /* sets GPIO3 as an output with remote control for touch XRES */
+ <0x1F>, <0x05>,
+ /* set GPIO5 high, backlight enable on new display */
+ <0x20>, <0x09>,
+ /* set GPIO7 and GPIO8 high to enable touch power and prox sense */
+ <0x21>, <0x91>;
};
--
2.20.1
